ICS TRIPLEX T8235

Description

Product Description

Technical Parameters

1. Brand: ICS TRIPLEX
2. Model: T8235
3. Device Type: TMR Digital Input Module for Safety-Critical PLC Systems
4. Operating Voltage: 24V DC (redundant stable power supply)
5. Operating Temperature Range: -40°C to +75°C
6. Maximum Current Consumption: 5.2A
7. Number of Digital Input Channels: 32 isolated channels (triple redundant configuration)
8. Input Signal Type: Dry contact, NPN/PNP (configurable per channel)
9. Protection Class (IP Rating): IP24
10. Housing Material: High-strength aluminum alloy (conformal coated for corrosion resistance)
11. Dimensions (L×W×H): 134mm × 86mm × 50mm
12. Warranty Period: 3 years
13. Power Consumption: ≤3.5W
14. Input Response Time: ≤0.5ms
15. Isolation Voltage: 2500V AC (channel-to-channel, channel-to-ground)
16. Safety Certification: IEC 61508 SIL 3, TÜV Rheinland, CE, UL
17. Fault Detection Time: ≤8ms
18. Sequence of Events (SOE) Resolution: 1ms

Advantages and Features

1. Robust TMR Fault Tolerance: ICS TRIPLEX T8235 adopts a core triple modular redundancy design with a 2-out-of-3 voting mechanism. This architecture automatically identifies and isolates faulty channels or redundant paths, ensuring continuous and accurate signal capture even if one module path malfunctions—critical for safety-critical applications where signal loss could trigger emergency shutdowns or industrial accidents.
2. High-Density Isolated Channels: Equipped with 32 isolated digital input channels, ICS TRIPLEX T8235 delivers exceptional integration density, reducing the number of modules required in control cabinets and optimizing space utilization. The 2500V AC isolation voltage prevents cross-channel interference, ensuring signal stability in high-voltage industrial environments.
3. Fast Response & Precise Event Recording: The module achieves an input response time of ≤0.5ms and a 1ms SOE resolution, enabling real-time capture of transient digital signals and precise recording of event sequences. This ensures timely feedback for time-sensitive control actions, such as fault alarms and emergency interlocks in oil refineries and chemical plants.
4. Strong Environmental Adaptability: With an operating temperature range of -40°C to +75°C and conformal coated components, ICS TRIPLEX T8235 operates stably in extreme conditions, from cold Arctic industrial sites to hot desert oilfields. It also resists electromagnetic interference, humidity, and mechanical vibration, adapting to the most challenging industrial scenarios.
5. Easy Maintenance & Diagnostics: Built-in LED status indicators for each channel and a dedicated diagnostic interface allow technicians to quickly identify fault points and perform troubleshooting. The module supports hot-swappable installation, enabling on-site maintenance without shutting down the entire system—greatly reducing operational downtime.

Application Cases in Various Industries

1. Oil and Gas Industry: In offshore drilling platforms, ICS TRIPLEX T8235 captures digital signals from emergency shutdown valves, gas detection sensors, and pipeline pressure limit switches. Its TMR architecture and corrosion-resistant design ensure uninterrupted operation in corrosive marine environments and extreme weather, safeguarding the safety of drilling and oil transportation processes.
2. Chemical Industry: In large chemical production lines, ICS TRIPLEX T8235 monitors digital signals from reactor safety interlocks, toxic gas alarms, and fire suppression system triggers. Its fast response time and fault-tolerant design prevent industrial accidents caused by signal delays or failures, complying with strict chemical safety regulations.
3. Nuclear Power Industry: In nuclear power plants, the module collects digital signals from reactor coolant system switches, emergency core cooling system sensors, and containment pressure interlocks. ICS TRIPLEX T8235’s SIL 3 certification ensures compliance with the strictest nuclear safety standards, preventing potential hazards and ensuring stable reactor operation.
4. Power Generation Industry: In thermal and hydroelectric power plants, the module captures signals from boiler safety interlocks, turbine speed switches, and generator load monitors. Its precise event recording and fast response enable timely adjustments to power generation processes, optimizing efficiency and maintaining grid stability.
5. Aerospace Manufacturing: In aerospace component testing facilities, ICS TRIPLEX T8235 captures digital signals from test bench safety switches, structural stress sensors, and automated test equipment. Its high reliability and fast response time ensure the accuracy and validity of critical component performance tests.

Comparison with Competitors

Selection Suggestions and Precautions

Selection Suggestions

1. Prioritize Safety-Critical Signal Capture Scenarios: With IEC 61508 SIL 3 certification and TMR architecture, ICS TRIPLEX T8235 is ideal for industries such as nuclear power, oil and gas, and chemical processing—where system failures could lead to severe safety hazards, environmental damage, or massive economic losses.
2. Check System Compatibility: If your existing control system uses ICS TRIPLEX Trusted series hardware (e.g., T8110B processor, T8403 analog output module), ICS TRIPLEX T8235 will integrate seamlessly, reducing integration costs and ensuring consistent system performance.
3. Evaluate Channel and Speed Needs: For projects requiring 25+ digital input channels and real-time signal capture (e.g., emergency shutdown systems, high-speed production lines), the module’s 32-channel design and ≤0.5ms response time meet the most stringent requirements.
4. Consider Harsh Environment Requirements: For equipment installed in extreme temperatures (below -30°C or above +60°C) or high-interference industrial sites, the module’s ruggedized design and anti-interference capability provide superior reliability compared to competitors.

Precautions

1. Installation by Certified Technicians: Installation, wiring, and configuration of ICS TRIPLEX T8235 must be performed by certified technicians with experience in ICS TRIPLEX safety systems. This ensures compliance with SIL 3 requirements and avoids configuration errors that may compromise system safety.
2. Confirm Redundant Power Supply: The module relies on 24V DC redundant power. Ensure the power supply system is properly configured with backup units and surge protectors to prevent signal loss due to single power source failure and avoid voiding the warranty.
3. Avoid Exposure to Corrosive Substances: Do not expose ICS TRIPLEX T8235 to direct water, corrosive gases, or abrasive materials, even though it has an IP24 protection rating and conformal coating. This preserves the integrity of the isolation circuits and internal components.
4. Regular Calibration and Diagnostics: Conduct regular maintenance (at least once every six months) in accordance with the manufacturer’s guidelines. Calibrate input channels, check LED status indicators, and update firmware to maintain SIL 3 compliance and stable performance.
5. Use Genuine Spare Parts: For repairs or replacements, use only genuine ICS TRIPLEX spare parts. Non-genuine components may violate safety certifications and lead to system malfunctions in critical scenarios.

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